bookdb.java

用java编写的一个简单的购书系统

package DBClass;
import BookClass.BookDetail;
import DBAO.BookDBAO;
import SCartClass.ShoppingCart;
import CItemClass.ShoppingCartItem;
import java.util.*;

public class BookDB
{
	private String BNum="0";
	private BookDBAO database=null;
	
	//
	public BookDB()
	{
		//try{
			this.database=new BookDBAO();
		//}catch(Exception e){
		//	System.err.println(e);
		//}
	}
	
	//
	public void setBNum(String BNum)
	{
		this.BNum=BNum;
	}
	
	//
	public void setDatabase(BookDBAO database)
	{
		this.database=database;
	}
	
	//
	public BookDetail getBookDetail()
	{
		return database.getBookDetails(this.BNum);
	}
	
	
	public List getBook()
	{
		return database.getBooks();
	}
	
	//
	public void buyBook(ShoppingCart cart)
	{
		database.buyBooks(cart);
	}
	
}